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Draw the pmf of the Poisson distribution that results when the parameter α is equal to the following:
(a) α = 1 /2
(b) α = 1
(c) α = 2
(d) α = 4
The credit score of a 35 year old applying for a mortgage at Ulysses Mortgage Associates is normally distributed with a mean of 600 and a standard deviation of 100.
How does your sample compare to this theoretical distribution of sample means and what are the mean, variance, and standard deviation of the observations in your sample?
Use information from the modular background readings as well as any good quality resource you can find. Please cite all sources and provide a reference list at the end of your paper.
Two letters are chosen at random without replacement from word statistical. Determine the probability that both letters are s?
Of the 250 students in a blind taste test, 150 (60%) preferred Milwaukee's Best over Natural Light. Then the 90% confidence interval for the student population proportion preferring Milwaukee's Best is:
Should Martha use an independent-samples t-test or a related samples t-test? Explain your answer.
Use this information to construct a probability table, and then calculate each of the following probabilities:
How large a sample would be necessary to estimate the population proportion with a margin of error of 0.05 at 95% confidence?
Computation of Expectation, Variance and Covariance.Calculate the variances of Y1 and Y2.
It is estimated that 2% of the athletes competing in a large tournament are users of an illegal drug to enhance performance. The test for this drug is 95% accurate. What is the probability that an athlete who tests positive is actually a user?
What is 95% confidence interval estimate for average number of years served by all Supreme Court justices?
Estimated the probability that among 75 randomly selected students, at least 20 of them score greater than 78.
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